[JohnJ]

Hey, to that vacuum skull Grayson, all mean looking guns are the same. Maybe he got it confused with the SAW? (They’re both 5.56 at least.)

Squad Automatic Weapon (SAW), M249
Cyclic: 725 rounds per minute
Sustained: 85 rounds per minute
http://fas.org/man/dod-101/sys/land/m249.htm

[Myrddin]

The limiting factor is heat dissipation. 85 rds/min is about the same for the heavy barrel M-16. If you push harder, the chamber gets hot enough to cook off the next ground.